200 Zoology. 
of the Nile, also found in Industan. The Ganges maintains a species, Tr. Gan- 
geticus, peculiar, as far as it is known, to that river ; another, the Tr. granosus, 
which forms the passage to the Emydes, is found also on the coast of Coroman- 
del ; while two others, Tr. stellatus and subplanus, have been observed from 
Bengal to the Island of Java. The Trionyx of Japan belongs most probably to 
the first of these, which would thus be nearly ap widely diffused as the E. vul- 
garis, of which a local variety is found in the islands of that empire. The other 
Emydes of the south-eastern portion of Asia are E. tectum; E. megacephala, 
so characteristic in its heavy or unwieldy form ; E. tetraonyx, intermediate be- 
tween the Emydes and Trionyx, and a native of the river Irawaddy ; E. Spen- 
gleri, of which several interesting varieties are known from the isle of France, 
Ceylon, Penang, Malacca, Sumatra, Java, Borneo, and China ; and finally, two 
species, which vary from the others by their rounded shell, and of which one pos- 
sesses a moveable sternum ; E. couro inhabits China, the southern point of Ce- 
lebs, and the islands of Penang, Java, and Amboyna ; while the other, E. trijuga, 
has only been found in Java. 
We are only acquainted with a single tortoise from New Holland, the E. lon- 
gicollis, belonging to the group of long-necked Emydes Siebold, Faun. Jap. 
Chelonii per C. J. Temminck, and H. Schlegel. 
Motacilla neglecta, Gould An adult male bird of this species was killed by Mr 
Hoy, in the parish of Stoke Maryland, Suffolk, on the 2d of May 1836. 
This we believe is the first authenticated British example of the grey-headed 
wagtail. 
Tringa pectoralis, Buonap The same gentleman has also in his possession 
a specimen of the Pectoral Tringa, killed upon the borders of Breyden Broad, 
near Yarmouth. Upon dissection it proved a female. Mr Anderson, who exa- 
mined the specimen, pronounced it to be the Tringa pectoralis of the United 
States. 
Salmon, food of. From the rare occurrence of being able to detect any thing 
recognizable in the stomach of the salmon ( S. salar} on it first egress from 
the sea, it has by many been supposed to feed entirely upon animalcula or mi- 
nute entomostraca, (according to Dr Knox upon the spawn of certain species of 
Asterias or star-fish.) The following fact, however, evidently shows that it is 
not always content with such minute prey, as indeed we had previously been 
satisfied in our own mind was the case, from the circumstance of its voracity in 
rivers, as well as in large estuaries, where it is frequently taken, by a sand- 
launce, used as a bait. " On Saturday, June 18, 1836, (my correspondent, G. C. 
Atkinson, Esq. informs me,) a female fish S. salar of twelve pounds weight, was 
taken at Tynemouth Bar, in the stomach of which were thirteen herring sprats; 
there was nothing remarkable in the external appearance of the fish, but the 
stomach was of large size, and has a diseased appearance." This probably arose 
from its great distension, but as the viscus has been preserved, we shall upon 
inspection be better able to judge whether this is the case or not. In corrobora- 
tion of the predatory habits of the salmon, I may add, that Dr Johnston inform- 
ed me a few days ago, that the stomach of a grisle (the young of S. salar,) of 
one and a-half pound weight, and one of the first taken this season in the Tweed, 
3 
